Concealed hinge.



E. N. BALDWIN, JE.

CONGEALED HINGE.

APPLICATION FILED AUG.12, 1912.

Patented Sept. 16, 1913.

@mmf/aow @Mov/mm3 attaching inward ELI n. BALDWIN, an., on strnnrronn,conuncrrcu'r.

CONCEALED HINGE.

T9 all whom z5 mag/- camera Be it known that E, EL; N.Bnnnw1N, Jr.,

a citizen of the United States, residing at Stratford, county ofFairfield., State of Con- 5' nect-icut, have invented an Improvement inConcealed; Hinges, of which the fol-lowing is a specification.

This invention has for its object to` provide an inexpensive but verystrong and rigid concealed hinge adapted for general use and especiallyadapted for use as an automobile or coach hinge, so-called, the

hinge'being wholly concealed in the closed position, being finish withthe surface of the jamb in the open position and being so const-ructedas to positively retain the door out of contact with an automobile orcoach body .when in thel open position. u

With these and other objects in view I have devised the novel concealedhinge which I vwill now describe, referring to the accompanying drawingforming part of this specification and using reference characters toindica-te the several parts.

Figure l is a horizontal section of a door and jamb, my novel hingeappearingin plan, thedoor being shown in full lines in the closedposition and in dotted lines in a partly open position; Fig. 2 a similarView, `the door being in the fully open position and the hinge membersin section on the line 2-2'in Fig. 3, looking in the direction of thearrows; Fig. 3 a view of the tace of the jamb1 and the inner face of thedoor .showing the hingein the fully. open position; F igsl. 4 andwperspectives of the hinge p members detached, and Fig. 6 isa view similar to Fig; 2, showing a slight modification in the hinge members` topermit the door to be swung past an angle of 90 degrees in the openposition. I f

10 denotes the door member of the hinge as a whole, l5 the jamb member,2 0 a door and 2l a jamb. The jamb member compri-ses a stop plate 22which for convenience I will describe as lying in the vertical plane,attaching flanges 23 which lie in aI vertical plane at rightangles tothe plane ot' the lstop plate, and side plates 2-1 whichlie in D thehorizontal plane and connect the attaching anges to the stop plate. Thedoor member comprises an attaching plate 25 and an angle platecomprising arms 26 and 27, arm 26 xtending ata right angle from theplate and duter arm 27 extending at a riglit tangle to arm 26 and par-Specication of Letters Patent. Application filed August 12, 1212. SerialNo. 714,551.

Patented Sept. 16, 193.

alilel with the attaching plate.. The inner ,ends of stop plate 22 andof arm 27 of the angle plate are provided with corresponding hinge eyes28 through which a pin 29 passes, in the usual manner.

Iny attaching my novel hinge in place the jamb member is let into anopening in the face 0fthe jamb and attaching flanges. 23 are also letinto the face of the jamb, so as to Alie Hush therewith. Attaching plate25 of the door member is likewise let into the edge of the door so as tolie iiush therewith.

The operation will be readily understood from the drawing. In the closedposition the recess in the jamb receives the whole et' the door memberwith' the exception of the attaching plate, the arms of the angle plateswinging freely between side plates 24. The closed position vvof themembers will be readily understood from Fig. l. It will be notedfurthermore from Fig. l that owing to the arc of movement of the angleplate, the recess in the jamb only requires to be made just largeeno-ugh to contain the angle plate in the closed position, as in theopening movement arm 27 swings away from the wall of the recess (seedtted position in Fig. l). lVhen the door is swung to the fully openposition, arm 27 ot the angle plate Ywill lie flatl against thesuriaceof stop plate 22, as clearly shown in Fig. 2. This engagement of plate27 with the stop plate limits the opening movement of the door andrenders it impossible for the edge of the door to strike the highlyiinished surface'of an automobile or coach body.

Ordinarily it is preferred that the door swing to an angle o1 about 90degrees to the plane of the body. lf preferred, however, 'by bending arm26 to a more or less acute angle to arm 27 instead of to a -right anglethereto, and away the edge of stop vplate 22, the 4door may be swungpast an angle of 90 degrees, as clearly shown in Fig. 6. i

Having thus vdescribed my.invention I claim: l

l. A concealed hinge formed from sheet metal and consisting of av jambmember comprising a stop plate in the vertical plane, attaching flangesin the vertical plane and at right angles to the stop plate and sideplates in the horizontal plane which connect. the attaching tlangestothe stop plate, and a door member comprising an attaching plate and anangle plate one arm llfi of which is connected to the attaching plate,the other arm extending at a right angle and parallel with the attachingplate, said stop plate and second mentioned arm being provided withhinge eyes. y

2. A concealed hinge formed from sheet metal and consisting of a jambmember comprising a stop plate and side plates at an.

angle thereto'said stop plate being provided with hinge eyes and saidside plates With attaching langes, and a door member comattaching plateandan angle In testimony whereof I affix my signature in presence of twoWitnesses.

ELI N. BALDWIN, JR.

Witnesses:

MARY E. BARRETT, JAMES H. BLAKEMAN.

